As long as both users have these apps, they can exchange messages for free. The idea has clearly caught on, with WhatsApp touting more than 450 million active users as it prepares to be acquired by Facebook, and the company is coming after voice calls next.
A normal resting heart rate for adults ranges from 60 to 100 beats a minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats a minute. To measure your heart rate, simply check your pulse. Place your index and third fingers on your neck to the side of your windpipe.
resting pulse rate is measured by beats per minute bpm this measurement is best taken first thing in the morning before you get out of bed typical healthy resting heart rate in adults is 60 80 bpmnote however that conditioned athletes often have resting heart rates below 60 bpm tour de france cyclist lance armstrong has a resting hr around 32 bpm and it is not unusual for people doing regular exercise to have resting pulse rates below 50 bpmypical healthy resting heart rate in adults is 60 80 bpm note however that conditioned athletes often have resting heart rates below 60 bpm tour de france cyclist lance armstrong has a resting hr around 32 bpm and it is not unusual for people doing regular exercise to have resting pulse rates below 50 bpm